Primates in the suborder Strepsirrhini (non tarsier prosimians) are able to synthesize vitamin C, like most other mammals, while primates of the suborder Haplorrhini (tarsiers, monkeys and apes) have lost this ability, and require the vitamin in their diet.

The predominant cause is a vitamin D deficiency, but lack of adequate calcium in the diet may also lead to rickets (cases of severe diarrhea and vomiting may be the cause of the deficiency).

However, less data is available for other dietary antioxidants, such as vitamin E, or the polyphenols.

But if you give people vitamin D supplements, you don't change that high rate of heart disease.

In humans, the most important compounds in this group are vitamin D3 (also known as cholecalciferol) and vitamin D2 (ergocalciferol).

In the absence of vitamin D, dietary calcium is not properly absorbed, resulting in hypocalcaemia, leading to skeletal and dental deformities and neuromuscular symptoms, e.g.

A low level of blood Vitamin B is a finding that normally can and should be treated by injections, supplementation, or dietary or lifestyle advice, but it is not a diagnosis.

Whether it is made in the skin or ingested, cholecalciferol is hydroxylated in the liver at position 25 (upper right of the molecule) to form 25 hydroxycholecalciferol (calcidiol or 25(OH)D).

Very few foods contain vitamin D synthesis of vitamin D (specifically cholecalciferol) in the skin is the major natural sources of the vitamin.

Vegan diets tend to be higher in dietary fibre, magnesium, folic acid, vitamin C, vitamin E, iron and phytochemicals, and lower in calories, saturated fat, cholesterol, long chain omega 3 fatty acids, vitamin D, calcium, zinc and vitamin B12.

Examples of raw animal food diets include the Primal Diet, Anopsology (otherwise known as Instinctive Eating or Instincto ), and the Raw Paleolithic diet (otherwise known as the Raw Meat Diet ).

In a study by Mithal et al., Vitamin D insufficiency of various countries was measured by lower 25 hydroxyvitamin D. 25(OH)D is an indicator of vitamin D insufficiency that can be easily measured.

I'm on a diet.

I'm dieting.

We're dieting.

Asian arowanas are carnivorous and should be fed a high quality diet of meaty food, such as shrimp and crickets.

I need more vitamin D.

She is on a diet.

She is dieting.

She's on a diet.

She's dieting.

Are you on a diet?

Tom is dieting.

Well known human vitamin deficiencies involve thiamine (beriberi), niacin (pellagra), vitamin C (scurvy), and vitamin D (rickets).

Individual B vitamin supplements are referred to by the specific name of each vitamin (e.g., B1, B2, B3 etc.).

They've probably heard of the South Beach Diet, or the Atkins Diet.

Oranges are a good source of vitamin C.

This includes vitamin A, C, E, selenium, zinc, and folic acid with or without vitamin B12.

Are you on a diet?

Are you on a diet?

Now, what we were careful to do was, vitamin D is made by ultraviolet B rays and we wanted to separate our story from the vitamin D story.

And that diet is known as the Hara, Hatchi, Bu diet.

Diet Orangutans are opportunistic foragers, and their diets vary markedly from month to month.

This is separate from vitamin D.

Tangerines contain a lot of vitamin C.

Mandarin oranges have a lot of vitamin C.

Diet and Growth

As one of the enzymes needed to make ascorbic acid has been lost by mutation during primate evolution, humans must obtain it from the diet it is therefore a vitamin.

Oranges contain a lot of vitamin C.

Oranges are rich in vitamin C.

They know what vitamin means.

Oranges have a lot of vitamin C.

Should I take vitamin C? Should I be taking wheatgrass?

He's dieting.

Tomorrow, I start the diet.